xv6

commit ee3f75f229742a376bedafe34d0ba04995a942be
parent 98754d687e1999eecf8de1b4557218f4f5c055c5
Author: rtm <rtm>
Date:   Thu, 28 Aug 2008 17:57:47 +0000

simplify growproc

Diffstat:
M
proc.c
 | 
5
++---

1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/proc.c b/proc.c
@@ -49,16 +49,15 @@ allocproc(void)
 int
 growproc(int n)
 {
-  char *newmem, *oldmem;
+  char *newmem;
 
   newmem = kalloc(cp->sz + n);
   if(newmem == 0)
     return -1;
   memmove(newmem, cp->mem, cp->sz);
   memset(newmem + cp->sz, 0, n);
-  oldmem = cp->mem;
+  kfree(cp->mem, cp->sz);
   cp->mem = newmem;
-  kfree(oldmem, cp->sz);
   cp->sz += n;
   setupsegs(cp);
   return cp->sz - n;